Cernătești is a commune in Dolj County, in the Oltenia region of Romania. It is located in the south-western part of the country, within a county whose administrative seat is the city of Craiova.
The commune is composed of five villages: Cernătești, Cornița, Rasnicu Bătrân, Rasnicu Oghian and Țiu. Cernătești is the village that gives the commune its name and serves as its administrative centre.
As a commune, Cernătești is one of the basic units of local administration in Romania, a status it shares with thousands of similar rural municipalities across the country. It lies in the historical region of Oltenia, the area of Romania situated west of the Olt River and bounded to the south by the Danube.